The Eyelash Primer is used to cleanse and prepare the natural lashes for maximum bonding of the adhesive. It removes all traces of excess oil and dirt. Additionally, as the adhesive will bond faster, overall application time will be reduced. Adhesive Primer can be used on natural or extended lashes making it ideal for both initial application and touch-ups and will not affect any existing eyelash extensions bonds. Be cautious not to get any primer in the eye or have it touch the skin. Remove excess primer on a paper towel. Best applied with a micro brush.